C1q, a subcomponent of the classical complement pathway, is composed of nine subunits that mediate classical complement activation and thereby play an important role in the immune response. Six of these subunits are disulfide-linked dimers of chains A and B, while three of these subunits, designated C1q-A through C1q-C, are disulfide-linked dimers of chain C. Each chain contains an N-terminal collagen-like region and a C-terminal C1q globular domain. The presence of receptors for C1q on effector cells modulates its activity, which may be antibody-dependent or independent. Macrophages are the primary source of C1q, while anti-inflammatory drugs as well as cytokines differentially regulate expression of the mRNA as well as the protein. C1q deficiency is associated with lupus erythematosus and glomerulonephritis.
Formulation
1 mg/ml in 1X PBS; BSA free, sodium azide free
Host
Mouse
Immunogen Region
A recombinant human partial protein (amino acids 104-237) was used as the immunogen for the C1QA antibody.
Isotype
Mouse IgG2b, kappa
Species Reactivity
Human
Note
Optimal dilution of the antibody should be determined by the researcher.
Uniprot
P02745
Format
Purified
Purity
Protein G affinity chromatography
Storage
Store the C1QA antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).
Applications
ELISA, WB
Description
ELISA (order BSA-free format for coating),Weste blot: 1-2ug/ml